● Extensive experience in Java versions: JDK 1.8/1.7,1.6/1.5, J2EE technologies such as JDBC, Servlets, JSP, Struts, JSF, EJB, Spring, Kibana, Splunk, Web Services, Hibernate, SQL, MySQL, NoSQL, JMS, XML, XSD, XSL and JNDI, AJAX.● Experience in Developing data ingestion modules to data into various layers in S3, Redshift and Snowflake using AWS Kinesis, AWS Glue, AWS Lambda and AWS Step Functions.● Strong understanding of common API technologies, such as OAUTH, SAML, Spring Boot and Micro services. Experience in handling messaging services using Apache Kafka.● Experience in developing SOA by utilizing various J2EE packages and associated technologies such as Struts, Hibernate, spring, SQL, NoSQL, JavaScript, JNDI, CSS3, JDBC, JMS and SOAP, Rest web services. Hands-on experience in development of Micro services and deploying in Docker.● Comprehensive experience in Advanced JavaScript libraries and frameworks such as Prototype, Ext Js, NodeJs, AngularJs, and Object-oriented programming in JS.● Good knowledge of data modeling techniques in Cassandra and Expertise in Migrating existing applications into micro services architecture using Rest APIs and spring boot.● Proficient in Elasticsearch, data modeling and querying using log aggregation, data extraction and reporting using Elasticsearch, Logstash, Kibana tools.● Experienced in implementing Micro services, Service Oriented Architecture (SOA) with XML based Web Services (SOAP/WSDL) using Top Down and Bottom-Up approach.● Experience in Importing data from various sources to the Cassandra cluster using Java/REST API’s and experience with querying on data present in Cassandra cluster.● Expertise in developing UI based GUIs using Java Applets, HTML5, DHTML, Core Java, Typescript, React, XML, DOJO, AJAX, JSF, JSP & spring form tags.● Experienced with AWS Cloud Formation templates on creating IAM Roles & total architecture deployment end to end (creation of EC2 instances and its infrastructure).● Experience in developing user interface screens and the validations using HTML, XHTML, JSP, Angular JS, Bootstrap, jQuery, Node JS, and CSS.